Tool for removing and replacing motor parts



Dec. 6, 1927. j 1,652,063 v N. ST. PETER TOOL FOR REMOVING AND REPLACING llO'l'OR PARTS Filed Jan. 1927 INVENTOR flaw/v Jz PETER I ATTORNEY5 Patented D... e, 1921.

UNI-rs o *FISTATES PATENT orrics.

N nsoN s'r. PETER, on Mount VERNON, NEW YORK.

TOOL FOR REMOVING AND REPLACING MOTOR FART S.

Application filed January 8, 1927', Serial No..159,859..

or universal joint elevates one arm of a piv.

oted and rocking lever, the other arm of .which lever depresses the valve stem and opens the valve against the pressure oi a spring.

To remove the valve-raising spring and the valve for repairs or otherwise it is advisable first to lift the cam-actuated arm and depress the valve-operating arm of the lever against the stifi" pressure of the. value spring, so as to permit the socket section of the universal joint to be removed from the cam follower, and therebyleave that arm of the lever free to be depressed, and therefore the valve-actuating arm of the lever to be raised to the fullest extent.

The valve-actuating arm being then raised out of the way, the valve springand the valve can be removed from the valve'housing in the usual way. Conveniently to et- 3 rocking-lever against the pressure of the spring, I employ a simple, effective and con venient tool consisting of a bar having a handle at one end, a bearing at the other end to bear upon the arm of the lever to be depressed, a hook depending from the bar midway of its length to engage the under side of the lever arm to be raised, the down bearing and hook being both offset laterally from but axially in lines substantially parallel with the line of the handle. Thus while the handle bar will pass to one side of the rocking lever, the down bearing and hook will both be in the vertical plane of and engage the rocking lever so that when the handle is raised, the hooked lever arm will be raised and the borne lever arm will be depressed for removing the valve spring and valve as above stated, the handle being in a line substantially parallel with the lines of the down bearing and hook, the handle can be raised without interfering with the usual raised cover over the rocking lever.

In order that my invention may be fully understood, I shall first, describe in detail the feet this manipulation of the arms of the mode in which I at present prefer to carry the inventioninto practice and distinctly point out the invention in-the claim.

Reference is to be had'to the accompanying drawing forming part of this applica U011 in which corresponding parts are .des ign'ated by the same numbers in the figures.

Figure 1 represents a tool embodying my invention applied to the Valve operating rocking lever of a valve-in-head motor of the well-known Buick motor type.

Figure 2 is an enlarged perspective view of the tool. 5

Figures 3 and 4 are enlarged top and bot-V tom views, respectively, of the tool.

In the drawings, 3 designates one of the valvesof the Buick type motor illustrated; 4 designates thevalve stem; 5 the valve rais ing spring; 6 the spring cap; 7 the rocking lever; 8 the pivoting boss thereof; 9 the can'i-actuated follower; 10 the follower-depressing spring, and 1-1 the socket section and 12 the ball section of the universal joint connectingthe rocking lever 7 with the camfollower 9. g

To engage and rock the lever 7 against the pressure of the valve spring, I form my improved tool of a rigid metal bar 13 having a handle 14: at one'end, a bearing 15 on the other end preferably grooved on its underside to engage and embrace one arm of the lever 7, a rigid hook 16, spaced from bearing 15 and depending from the underside of the bar to engage and embrace the underside of the other arm of the lever 7 and by preference a lateral otfsetl'? between the hook 16 and bearing 15, so that while the handle bar will pass to one side of the lever 7 the down bearing 15 and hook 16 will lie in lines laterally offset from but substantially parallel with the line of the handle bar and in the vertical plane of the lever, and thus bring the line of pressure of the hook 16 and bearing 15, directly over the lever 7. The usual cover over the valves is raised on its'hinge 'to give access to the lever 7, and the handle 14 is made as described substantially par allel with the lines of the bearing 15 and hook 16, so that it can be raised to the required extent without interfering with the cover.

The hook 16 of the tool being engaged as described with the cam-actuated arm of the lever and the bearing 15 with the valve-actuated arm, the ianiraetuated arm can be easily raised against the pressure oi the valve spring to remove, if desired, the socket section 11, and tree that arm of the lever. The hook 16 of the tool being then engaged with the valve-operating arni oi the lever 7 and the hearing iii with the cam-actuated arm of the lever, the valve-operating arm can he easil raised for freeing and removing the valve spring and valve thin the usual way.

By a similar convenient use of the tool the "valve and spring can be replaced with the same ease and expedition.

It is evident that many changes may he made in the details of my invention without departing from the boundaries thereof as defined by the following claim.

I claim as my invention:

A tool for manipulatin a spring actuated rocking lever as deserihed, eonsistin of a rigid bar having a handle at one enc, a hearing at the other end, to en age and press downward one lever arm, ant a medial depending hook to engage and lift the opposite lever arnn the downwardly pressing hearing and hook being oll'set laterally from the handle liar, hut in lines substantially parallel with the line of the handle bar, so that while the handle bar lies toone side of the lever, the downwardly pressing bearing and hook willlie in the vertical plane of the lever and engage the respective arms thereof.

in testimony whereof I aliix my si nature. 

